Days before the fight, it was revealed that The Notorious’ guaranteed purse was an impressive £23m ($30m), a sum of money he couldn’t have fathomed making when he joined the UFC a little over four years ago.

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So just how much did Ireland’s first UFC belt holder make in his professional boxing debut?

“Right now we're in the counting game”

Conor McGregor on how much he earned fighting Floyd Mayweather

Was it £23m ($30m), £38m ($50m) or £76m ($100m)?

According to the man himself, the biggest payday of his career is closer to the latter figure. However, he hinted it could be more than that sum as he’s not still counted all of his cheques.

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Conor McGregor claims to have earned over £78m for his boxing match with Floyd Mayweather

“It's around that, we're still in the counting game,” McGregor said at a Q&A session in Glasgow last month when asked if he banked £78m ($100m). “Some people are saying it's this, other people are saying it's that.

"You know, you get your show money and then you go and gather all your information. The gate, the pay-per-view, the sponsorship revenue, the merchandise sales.

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Conor McGregor suffered a tenth round TKO loss to Floyd Mayweather Jr

"It's my first time as a promoter of an event, so it's my first time kind of diving into all of these things.

"Right now we're in the counting game."

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Floyd Mayweather and Conor McGregor pose for the cameras at their post-fight press conference

McGregor's bout with Mayweather, his first as a professional boxer, drastically increased his career earnings, which, excluding sponsorship deals and other ventures, stood at £7m.

Click here to find out his net worth after his 'Money Fight' with Mayweather.

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Conor McGregor hasn't fought in the UFC since UFC 205, where he claimed the lightweight title

McGregor, 29, hasn't set foot inside the Octagon since his historic UFC 205 victory over Eddie Alvarez, a triumph which saw him become the first fighter in the promotion's history to hold two titles simultaneously.

The Irishman's next outing inside the cage is expected to a lightweight title unification fight with interim 155lbs champion Tony Ferguson, who made an immediate beeline for McGregor after claiming his first UFC belt.

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Tony Ferguson is the interim UFC lightweight champion

In his post-fight interview, 'El Cucuy' said: “Where you at McNuggets, ya f**king piece of s**t.

Speaking at the UFC 216 post-fight press conference, UFC president Dana White: "Tony is the interim champion, Conor is the champion, it's the fight that makes sense. It's the fight that has to happen. It doesn't make sense, it's the fight that has to happen."

Shortly after making that statement, White dismissed the notion of McGregor putting a fight with Ferguson on the back burner by saying: "Conor McGregor has never turned down a fight, ever. "And Conor McGregor did say to me that if Khabib is talking, I'll go to Russia and fight Khabib.

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Dana White is adamant Conor McGregor will fight Tony Ferguso

"Conor doesn't turn down fights. So, it's not a matter of Conor wouldn't fight to fight Ferguson or he'd want to do this or that. Obviously, Conor had the opportunity to make a lot of money and I felt that it was my duty to at least try make that fight happen. And we did.

"So I'd like to get back to business here and see some title defences."